diff --git a/data/devices/logitech-g502-x-plus.device b/data/devices/logitech-g502-x-plus.device
index 2b66ffcd..e15a51fc 100644
--- a/data/devices/logitech-g502-x-plus.device
+++ b/data/devices/logitech-g502-x-plus.device
@@ -5,4 +5,5 @@ DeviceType=mouse
 Driver=hidpp20
 
 [Driver/hidpp20]
-Quirk=G502X_PLUS
+# G502X_PLUS: LED is in the 2nd slot. INDEX_OFFSET: profile index is 1-indexed.
+Quirk=G502X_PLUS;INDEX_OFFSET